Maurizio Sarri cast doubt on his Lazio future after a miserable defeat at bottom-of-the-table Salernitana left them well off the pace in Serie A.
The former Chelsea manager couldn't disguise his frustration after Saturday's 2-1 loss, which left Lazio in 10th position and seven points off the top four.
'If I realised that I was the problem, I'd immediately step down,' said Sarri, who is in his third season in charge there.
They finished second in Serie A last season, albeit 16 points behind champions Napoli, but have struggled to recapture that form this time around.